Question

See question in attached photo.​

Answer 1

Answer:

• √-1 or i

Step-by-step explanation:

Since A² = 0 we need to get the value of λ when A = 0:

• A = λ*λ - 1(-1) = λ² + 1
• A = 0
• λ² + 1 = 0 ⇒ λ² = -1 ⇒ λ = √-1 ⇒ λ = i